Means for forming septic tanks



J. JOHNSON MEANS FOR FORMING SEPTIC TANKS Filed March 19. 1925 2 Sheets-Sheet 1 Y R Q Jam 02372224507 April 27-3926. "1,582 271 J. JOHNSON "BANS FOR FORMING SEPTIC TANKS Filed arc 19. 1925 2 SheetsESheef 2 i'v WITNESSES IN VEN TOR W 4 I Jan zmmon ATTORNEYS r it has hardened forms the walls of the tank of Figure To all whom it a ruq conccmk Patented Apr. 27, 1926.

UNITED STATES .JoiiN JOHNSON, or TAMPA, FLORIDA.

MEANS FOR FORMING SEPTIC TANKS.

Be it known that 1, JOHN Tampa, in the county of Hillsborough, State ot Florida, have invented certain new and useful Improvements in Meafis'for Formingbeptic Tanks, of which the following is aspecification.

My invention relates to the manufacture of tanks, such as septic tanks of the type formed of a material which while in a plastic state is placed 111 a form and which when An .object of the invention is to provide novel'means for forming relatively. heavy. tanks of the character described in such mannert-hatthetanks .cai be moved from the place at which t ey are formed to a desired place and p cedin position for use quickly, easilyand with but relatively little labor.

A further object of the invention is to provide novel means whereby tanks of a desirable size-and shape can be formed accurately and quickly.

Other objects and advantages of the invention will be apparent from the following description, considered in conjunction with the accompanying drawings, in which:

Figure l is a perspective view of a structure embodying the invention,

Figure 2 is a vertical section through the structure shown inflFig. 1 and through a tank which has been'forined therein,

Figure 3 is a section along the line 33 Figure his a perspective view of the outer form whiclris comprised in the structure, and i Figure 5 is a perspective View of a tank formed in accordance with the invention, the tank being shown in upright position.

A structure adapted for use'in the manufactureof tanks according to the invention. includes a guiding and supporting framedesignated generally at 1 which comprises pair of vertical corner guide posts or uprights '2, I a second pair of vertical "corner guide posts or uprights 3 and apai'r of intermediate or side guide posts'or uprights 4. Each of the corner guide posts or uprights 2 or 3 is right angular in horizontal sectional contour as best seen in Fig. 3. Each guide 4 is formed of two similar vertical members l each having a flat inner vertical face and. a th r r a member L -Wh ch i JOHNSON, a citizen of the United States, residing at- Application filed March '19, 1925. Serial No. 16,770.

interposed between the "associated members if and-is connected to the latter in any suits ablekiiown manner so that the flat inner faces of such associated ineinl'iers a lie in the same plane beyond which the vertical inner edge portion of the member l" extends as indicated at The portions 5 ofthe members at" may be considered as beingribs on the inner facesiof the guides at and the remaining portions of the members d and the associated members at may be formed iiitegrally with one another, if desired.

The end portions of the respective guides are held in spacededgewise alinement by an upper end bar 6 and a lower end bar 7 and the respective end portions of the re spective guides 3 likewise are held in spaced edgewise alinement by similar upper and lower end bars 6 and 7 respectively. The side portions of the adjacent guides 2 and 3 and the guide 4: which is disposed therebetween are connected together by side bars 8 so that the inner faces of the side portions of the guides 2 and 3 and of the members l l" of the guide i at each side of the frame 1 will lie in the same vertical plane and the inneredge portion 5 of theguide,

together adjacent to their upper ends by a transverse "edgewise disposed lar 9 which extends transversely of the frame between the adjacent or inner edges of the portions 5 and lies in the plane of the latter.

The frame 1 supports or is attached at its upper end toa platform or floor 10 which has an opening 11 therein substantially c0- extensive in area with the cross sectional area of the vertical guidewaywhichis defined by tllG COlllGl guides 3 and the adjacent members 45 and. the 'portions 5 of the members it of the guides lJ-The' platform 10 also has an opening 12 substantially c0- extensive in area with the cross sectional area of the vertical guideway which is defined by the corner guides 2 and the adjacent members i and portions 5 of the guides 4.;

'A' hollow core 13 is slidable vertically incore let has been raisedfsothat afportion of the platform 10. A core 1ft is slidable inv the second-named guideway from position below the level of the platform 10 until the versa.

thereof extends above the level of the plat form 10 in a distance equal to the length of the similarly positioned upper portion of the core 13. The platform 10 may have pulleys depending therefrom and cables 16 which are trained about the pulleys may be connected at one end to attaching elements 17 carried by the cores and may be provided at their other end with weights 18 balancing the weights of the cores so that the latter may be easily moved in the guideways from position below the level of the platform to position to extend above the level of the latter, as shown in Fig. 1, or vice The cores 13 and 14: may be releasably secured in raised position as shown in Fig. 1 in any suitable manner as by means of blocks resting upon horizontally alined side bars 8 as indicated at 19 in Figs. 1 and Each core 13 or let is substantially rectangular in cross sectional contour and each has one end wall thereof ofi'set inwardly for part of its width as indicatedat 20 for the core 13 and at 21 for the core 1 1. A space thus is defined at 92 between the plane of the offset portion 20 and the plane of the outer face of the remainder of the one end wall of the core 13 for the reception of an auxiliary core 23 which is shown as being a solid member adapted to be received within the space 22 so that inner vertical face of the core 23 will be spaced from the offset portion 20 of the one end wall of the core 13 and the outer face of the core 23 will lie in the plane of the remaining portion of the end wall of the core 1.3 while the side walls of the core will be spaced from the walls which merge the offset wall 20 into the remaining portion of the one end wall of the core 13.

A core 24 similar to the core 23 is adapted to be positioned in the space which is provi ded by oflsetting the-portion 21 of the one end wall of the core 14 in the same position in respect to the corresponding walls of the core 1 L as the position of the core 33 bears to that of the core 13.

The cores 23 and 24. may be secured in the hereinbefore described positions .in respect to the cores 1 1 and 13, respectively, by suitable means, such as the bolts 25 carried by supporting members 26 which are supported at the lower ends ofthe respective cores. The cores 13 and 1 1 are closed at their upper ends by top plates 27 and 9.8, respectively.

'A base 29 which is movably supported upon the platform '10, as by means of rollers 30, has an opening 31 co-extensive in area with the opening 11 and a second opening 32 co-extensive in area with the opening 12, the openings 31 and 32 being located relatively to each other so that the base can be disposed on the platform 10 with the opening 31 in registerwith the opening 11 and with the opening 32 in registerwitli the opening 12. The cores will then extend through the openings 31 and 32 above the level of the base 29 as shown in Figure 1.

An outer form comprises a pair of similar substantially rectangular sides and a pair of substantially rectangular ends 35. The sides 34 and the ends 35 are provided with co-engaging stop blocks or bars 36 and 37, respectively at the meeting portions thereof when the ends 35 are disposed in parallel relation between the sides 31 and in contact with the latter adjacent to the ends thereof. Clamps 38 comprising bars spanning the sides 3st at the upper edges of the latter and having depending end portions 38 extending in contact with the outer faces of the sides for a slight distance from the upper edges of the latter tend to clamp the sides 3 1- to the ends 35 and to prevent relative movement of the sides and ends of the outer form. Each side and end of the outer form may be formed of a plurality of boards 341 or 35 connected and braced by vertical boards or braces 34% or 35".

The sides and ends of the outer form may be disposed in spaced relation to the corresponding walls of the cores both because of the dimensions of the sides and ends of the outer form and the connection of the sides and ends of the outer form with each other and because of the engagement of lugs 39 carried by the sides and ends of the outer form to depend below the lower edge thereof with sockets 40 in the base 29. The cores 13 and 1 1 are held spaced apart at their adj acent ends because of the engagement of the lower end portions of the cores with opposite sides of the portions 5 of the guide members &. s

From the foregoing description of the various parts of the device the operation thereof may be readily understood. Concrete or like material is poured at the upper end of the outer form into the space between the sides of the outer form and the sides of cores 131-:t, between the one end of the outer form and the outer end of the core 13, and between the other end of the outer form and the adjacent walls of the core 11 and core 2%. Concrete or like material also is poured between the inner end of the core 14 and the adjacent ends of the core 13 and core 23, between, the core 23 and the core 13, between the core 2 1 and the core 1i, and across the upper ends of the cores 13 and 1 1-, thus pro viding a tank 41 disposed in inverted position and'having a bottom 42, end walls 4-3, side walls i t. a transverse partition 45, and 32111198 46 and 17 respectively carried by one end wallet?) and the partition -15 and extending from the plane of the upper edge of the tank for part of the height of the latter. Filler blocks (not shown) may be placed upon the auxiliary cores 23 and-.24: afterthe spaces between the auxiliary cores lit) eted wall (it the tank.

and the main cores have been filled so that the partition and the banies 1-6 and l? may be formed as shown in Figure 5. Small core pieces (not shown) may be provided between the ends of the outer form and the adjacent ends of the main cores 1; and Li and between the main cores to provide openings $8 in the upper portions of the end walls and the partition of the tank, the openings 418 through partition -15 and the one end wall of the tanl; being in communication with the spaces defined by the battles 4:6 and 47, respectively, in conjunction with the lVhen the tank has been formed in inverted position in the manner described, the cores 13,1 .3 and 2 L are lowered beneath the level of the base 29- and the latter is then moved along the platforn'i to a desired place, at which the tank is overturned from the base by any suitable known means so that it will rest upon its bottom and in position for use. A slab (not shown) may be formed of concrete in an ordinary manner and employed as a cover for the tanle 7 Obviously, the invention is susceptible out embodiment in forms other than that illus trated in the accompanying drawings and I, therefore, consider as my own all modifications and adaptations thereof that fairly tall within the scope of the appended claims.

I claim 1. An apparatus adapted for use in forming a vessel of a plastic material, comprising a. platform having an opening therein, abase resting upon the platform and havingan opening in register with the opening in the plattorin, a core adapted to move vertically through the registered openings in theplatterm and base to protrude above the level or" the base, said core being of slightly less area in cross section than the openingin the base, said core having' a re-entrant portion at one end thereof, an additional core received in the space within said re-entrant portion of the first core in spaced relation to the walls of said re-entrant portion, an outer form open at-its upper end and disposed on the base in spaced relation to the core, and a guide associ *al movement thereof.

2. An apparatus of the character described V iomprising a platt'orn'i having a plurality of openings, a base supported on said platform and having openings correspond 1g in area and relative arrangementwith the'openings of the platform and the base, corresponding openings of theplattornrbe ing in vertical alinen'icnt, a core tor each opening of the base, means for guiding said cores for vertical movements to and from position to extend through the corresponding openings of the base above the level of the latter, means whereby said cores may be held in position to extend above the level of the base, an outer form supported on the per end, said base having notches therein and said form having lugs depending therefrom for engaging with said notches to hold said form in spaced relation to said cores, each of said cores being; hollow and being substantially rectangular in cross sectional contour andclosed at its upper end, each saaced relation to the walls of the latter said solid core terminating at its upper end short of the upper end of the first core, and an outer form encompassing said cores and having walls disposed in adjacent spaced relation to the outer walls of said cores, said form being open at its upper end.

f JOHN JOHNSON.

base in position to encompass allot' said cores, said outer form being open at its up- 

